A missing scientist has been discovered dead in a New Mexico forest, but that is just the beginning of a more harrowing and stunning story.
As The Daily Mail reported on Monday, New Mexico State Police announced that they identified the remains of 54-year-old Melissa Casias, a scientist and nuclear lab employee, who worked as an administrative assistant at the Los Alamos National Laboratory (LANL). The Office of the Medical Investigator in New Mexico has not yet determined the cause of her death.
Casias was last seen alive on June 26, 2025. Her body was found in the McGaffey Ridge area of the Carson National Forest.
This is about six miles from the last place Casias was seen walking before being declared missing.
It’s unknown how long Casias’s body was in the forest before it was found. But it’s surprising it took this long because this is a part of a US Forest Service restoration project where crews have been working consistently since December 2025.
Casia’s disappearance and death are also quite alarming. The Mail notes that she previously left ALL RECORDS from her phones (she had more than one), left her identification behind, and vanished last June.
Sounds like something straight out of a spy thriller. What was going on?
From the Daily Mail:
Casias vanished after dropping off her husband, another LANL employee, at the facility that June morning, approximately 70 miles from their home. That was when Casias’s behavior allegedly became unusual, as she claimed she would need to return home after forgetting the badge needed to access the nuclear lab.
According to her husband, Mark, a superintendent at the lab, Casias had the security badge with her when she dropped him off that morning, as she would have needed the badge to get past the security checkpoints.
When Casias arrived in Ranchos de Taos, the couple’s daughter, Sierra, reportedly told investigators that her mother visited the teen’s place of work to drop off a sandwich and then said she planned to work from home after forgetting the badge needed to access the nuclear lab.
The wife and mother then wiped all records from her phones before leaving them and her identification behind and walking out of her home in Ranchos de Taos.
Hellbound and Down 